heyBuddy- The problem is that unless you have a greenhouse, when the plant is done flowering you need 8-10 weeks of warm/hot weather to effectively root the new cuttings. California has a long indian summer but I am not so sure about N.J. I have rooted as late as the end of September here but your east coasters need to comment on how long they leave their plants outside. Bill

I usually leave mine out until the end of Sept. Sometimes into Oct. (for the past 5 yrs) This was my first year rooting cuttings. I had let them grow into 8' trees and they were getting very difficult to move in/out of the house.

I have lights I can finish rooting them under indoors if necessary.

Also - anyone know where I can get a bunch of cheap pots for the plunge next year? An online source would be good.

Not an east coaster...but I would typically wait until next spring to prune it.

For pots try a local nursery - many of them sell their cheapie black pots for super cheap to get rid of them. I lucked out with a nursery here - they have a recycling bin and you can leave what you don't want and take what you do want for free - I got some GREAT pots. Unless you're looking for really big ones, you may have a harder time finding those there. On eBay they end up being more expensive than i would like after shipping.

Heybuddy,
I also am in NJ, been on this forum for a short time. Glad to have someone who may have the same growing conditions & sounds like you've been growing plumeria for awhile. I may be picking your brain, if you don't mind. I started 3 years ago with some cuttings from Philly flower show. I have rooted & have very healthy plants, but no blooms yet.
Kathy
GSP exit 82

My question is. Once an inflow is finished blooming can it get a 2nd inflo later?

Once an inflo is finished, the plant will branch. You will eventually get inflos at the ends of those new branches, however, that could be next season, or the season after that, or even longer. If you cut the branch from the spent inflo and root that, that newly-rooted cutting can take 3 yrs or longer to bloom.

Or is it typically one per season for each branch?

A branch (or growing tip) can take anywhere from one to three seasons to be mature enough to form an inflo, depending on the age of the plant, the variety and your culture. On a good plant like Kimo for example, I can get inflos on maybe two thirds of the growing tips per season. On Calif. Sally, maybe 1/3 of the tips. Once the inflo has dried up, in 99% of cases the plant will not produce another inflo in the same location.

I'd like to cut off these branches and start rooting them once they've finished flowering - does this sound like a good plan so that I don't interupt anything?

Like others say, spring would probably be a better time to cut off the old branch and root it. Where the new branchlets are forming after the inflo, those tips will be very young, green and more prone to getting dehydrated in the rooting process. Also, rooting is more difficult in Fall and Winter. Not saying it can't be done. I've done it with some varieties.

Not sure this answers your question.

Thanks Dave - very helpful.

I think i'll be ok with rooting them. I had mixed success with the cuttings I took earlier this year. I've definately learned what NOT to do -lol.

The plant I took cuttings from previously was very leggy - So I had some middle cuts (cut at both ends). I was only able to get 1 out 5 of these to root (and that one now has stem rot :( ). All but 1 of the tips rooted fine.

Kathy - i'm new here as well. Not sure I can give much advise. If you've kept them for 3 years in this area, you've gotten the hang of it already ;)

wait till spring, the plant is going to go dormant, so will the cuttings, and then they will just be sitting in a pot of dirt until spring. The temptation to water or care for them will be too strong to resist and they will all rot.
Tally HO!